-
1.发明公开公开(公告)号：US20240356347A1
公开(公告)日：2024-10-24
申请号：US18701113
申请日：2023-06-29
发明人： Jeong Seok PARK , Youngdoo SONG , Yunseong HWANG
IPC分类号： H02J7/00 , G01R31/36 , G01R31/367 , G01R31/374 , G01R31/382 , G01R31/387 , H01M10/42
CPC分类号： H02J7/0025 , G01R31/3647 , G01R31/367 , G01R31/374 , G01R31/382 , G01R31/387 , H01M10/425 , H01M2010/4271
摘要： An energy storage system may include a plurality of battery management systems (BMSs) provided in correspondence to a plurality of batteries, respectively; and an upper control apparatus for collecting state information on the plurality of batteries from the plurality of BMSs and for monitoring or controlling the plurality of batteries based on the collected state information. The upper control apparatus may, upon the state information of the first battery being not received from a first BMS due to a loss of communication, select a second battery from among a plurality of batteries based on previously stored history information of batteries and use the state information of the second battery as the state information of the first battery.
-
2.发明公开公开(公告)号：US20240272234A1
公开(公告)日：2024-08-15
申请号：US18503548
申请日：2023-11-07
发明人： Osamu SHIMIZU , Yoshimi HORIBE
IPC分类号： G01R31/392 , B60R16/033 , G01R31/36 , G01R31/387
CPC分类号： G01R31/392 , B60R16/033 , G01R31/3648 , G01R31/387 , B60L58/16
摘要： The controllers perform a series of charge/discharge processes in which LFP cell is charged to a full state of charge by the charger/discharger, LFP cell in a full state of charge is discharged by the charger/discharger until OCV of LFP cell reaches a predetermined OCV of LFP cell that uniquely represents the common capacity before and after the degradation of LFP cell, and the current integrated value of the discharge current is acquired during the discharge process. The controllers perform the charge/discharge process one or more times to obtain the variation capacity of LFP cell based on the one or more current integrated values obtained thereby. The controllers add the variation capacity to the common capacity, calculate the full charge capacity of LFP cell, and determine the degradation of LFP cell based on the calculated full charge capacity of LFP cell and the initial full charge capacity of LFP cell.
-
公开(公告)号：US20240266858A1
公开(公告)日：2024-08-08
申请号：US18344228
申请日：2023-06-29
发明人： Shu-Hung YEH
IPC分类号： H02J7/00 , G01R31/36 , G01R31/387
CPC分类号： H02J7/00712 , G01R31/3648 , G01R31/387
摘要： A method of active charging control and a device thereof are provided, in which a target capacity value of a battery pack is obtained according to a target cycle count of the battery pack, and a calculated capacity value is calculated according to the plurality of updated capacity values of the battery pack and their corresponding plurality of weight values. Thereby, a capacity difference adjustment value is calculated based on the target capacity value and the calculated capacity value, so that a battery charging device can actively adjust the charging voltage of the battery pack according to the capacity difference adjustment value. Therefore, the requirement of actively controlling the charging voltage of the battery pack can be achieved, thereby optimizing the performance of the battery pack and improving the service life.
-
公开(公告)号：US12050252B2
公开(公告)日：2024-07-30
申请号：US17845362
申请日：2022-06-21
发明人： Chen Chen , Guangyu Xu , Wei Zhao
IPC分类号： G01R31/387 , G01R31/36 , G01R31/3842 , G01R31/392
CPC分类号： G01R31/387 , G01R31/3648 , G01R31/3842 , G01R31/392
摘要： Embodiments of this application relate to the technical field of batteries, and in particular, to a state-of-charge cut-off control method, apparatus and system, and a storage medium. The method includes: obtaining, in a discharging process of a battery, a net discharge capacity of a first battery cell from being fully charged to current time; obtaining an available capacity and a state of health of the first battery cell; obtaining a current remaining dischargeable capacity of the first battery cell; and setting a state of charge SOC of the first battery cell to 0.
-
5.发明公开公开(公告)号：US20240210488A1
公开(公告)日：2024-06-27
申请号：US18591347
申请日：2024-02-29
发明人： Juichi Arai , Ken Ogata , Hiroshi Imoto
IPC分类号： G01R31/392 , G01R31/387
CPC分类号： G01R31/392 , G01R31/387
摘要： To provide a deterioration state estimation device capable of highly accurately estimating the deterioration state and the service life of a secondary battery whose negative electrode does not contain a negative electrode active material with a simple configuration. The deterioration state estimation device according to an aspect of the present invention includes a thickness measurement value acquisition unit that acquires a thickness measurement value which is a measurement value of a thickness of a predetermined portion including at least a negative electrode of a secondary battery whose negative electrode does not contain a negative electrode active material, a charged state estimation unit that calculates a charge index estimation value which is an estimation value of a charge index indicating a charged state of the secondary battery, a deterioration state estimation unit that, by referring to at least any one of deterioration characteristic information after full charge that defines a relationship between the thickness after full charge and a deterioration index indicating a deterioration state of the secondary battery and deterioration characteristic information after complete discharge that defines a relationship between the thickness after complete discharge and the deterioration index, calculates a deterioration index estimation value which is an estimation value of the deterioration index for the secondary battery, based on the thickness measurement value and the charge index estimation value, and an output unit that outputs the calculated deterioration index estimation value.
-
6.发明公开公开(公告)号：US20240201271A1
公开(公告)日：2024-06-20
申请号：US18591461
申请日：2024-02-29
IPC分类号： G01R31/387 , G01R31/36 , G01R31/367 , G01R31/378
CPC分类号： G01R31/387 , G01R31/3644 , G01R31/367 , G01R31/378
摘要： A system and method for measuring the state of charge (SOC), molarity and concentrations of active species and oxidation state of a flow battery, such as a Vanadium Redox Flow Battery (VRFB). A reference electrolyte is circulated through a reference cell in conjunction with one or both charged electrolytes (in respective conduits). The electric potential of charged electrolyte relative to a reference electrolyte is measured. This measurement is directly convertible to SOC. An equation allowing for the calculation of the molarity, concentration of vanadium ions on both anolyte and catholyte sides of the flow battery and oxidation state is also taught. A flow battery may be controlled in response to such a determination, for example to manage oxidation state, or to charge or discharge a battery.
-
公开(公告)号：US11959970B2
公开(公告)日：2024-04-16
申请号：US18300116
申请日：2023-04-13
发明人： Huixing Meng , Mengyao Geng , Cheng Wang , Jinduo Xing
IPC分类号： G01R31/387 , G01R31/367
CPC分类号： G01R31/387 , G01R31/367
摘要： One or more embodiments of the present specification provide a method and device for capacity degradation prediction of a lithium-ion battery. The method comprises the following steps: acquiring an original battery discharge capacity; decomposing the original battery discharge capacity through a predetermined mode decomposition method to obtain battery discharge capacities composed of a plurality of different frequency signals; inputting the respective frequency signals into a pre-constructed capacity prediction model to obtain capacity prediction results corresponding to the respective frequency signals; selecting capacity prediction result that satisfies a predetermined relevance condition corresponding to the respective frequency signals; and reconstructing the finally predicted battery discharge capacity according to the capacity prediction result that satisfies the predetermined relevance condition.
-
8.发明授权公开(公告)号：US11933851B2
公开(公告)日：2024-03-19
申请号：US16968906
申请日：2019-02-21
发明人： Yonghwan Hyun , Sengtai Lee , Jinhyuk Choi
IPC分类号： G01R31/36 , G01R31/387 , H01M10/44 , H02J7/00
CPC分类号： G01R31/3648 , G01R31/3646 , G01R31/387 , H01M10/44 , H02J7/00714
摘要： According to various embodiments of the present invention, an electronic device may comprise a battery, a power management module, and a processor. The processor may be configured to: acquire power for battery charging from a source outside the electronic device through the power management module, charge the battery at a designated current value by using the power, check charging state information based on charging time and battery capacity according to charging in a designated charging state measurement interval after the charging is started, and when the charging state information satisfies a given condition, perform a designated operation associated with the battery. Various other embodiments are also possible.
-
公开(公告)号：US20230417838A1
公开(公告)日：2023-12-28
申请号：US18215085
申请日：2023-06-27
IPC分类号： G01R31/392 , G01R31/387 , B60L58/16 , H01M10/42 , H01M10/48
CPC分类号： G01R31/392 , G01R31/387 , B60L58/16 , H01M10/425 , H01M10/482 , H01M2220/20 , H01M2010/4278
摘要： A method and system for estimation of State of Health (SOH) of a battery pack is provided. The method includes determining a first SOH utilizing a set of operational parameters and a first set of stress parameters and a second SOH based on a determined discharge capacity. Utilizing the first and the second SOH, determine a second set of stress parameters of the battery pack. The method includes determining a third SOH of the battery pack based on at least one selected second set of stress parameters and the set of operational parameters and determining a deviation parameter based on the first and the third SOH. Thereafter, the method includes transmitting an ideal SOH signal to one of a server and a user device in response to the determined deviation parameter being greater than a pre-defined threshold.
-
公开(公告)号：US20230393206A1
公开(公告)日：2023-12-07
申请号：US18454830
申请日：2023-08-24
申请人： PMGROW CORPORATION
发明人： Jae Hong PARK
IPC分类号： G01R31/367 , G01R31/374 , G01R31/387 , G01R31/392
CPC分类号： G01R31/367 , G01R31/374 , G01R31/387 , G01R31/392
摘要： An evaluation method and device according to the purposes of a reusable battery are disclosed. The disclosed method comprises the steps of: obtaining state of health (SOH) information, state of balance (SOB) information, and state of power (SOP) information of a reusable battery; extracting evaluation parameters from the SOH information, the SOB information, and the SOP information; substituting the evaluation parameters into each of a plurality of evaluation models which are set differently according to use purposes of the reused battery; and calculating an evaluation result corresponding to the use purposes of the reused battery from the evaluation parameters by using the plurality of evaluation models, wherein the SOB information includes information on a correlation between the SOC and the SOB according to a change in a state of charge (SOC) of the reusable battery.
-
-
-
-
-
-
-
-
-
搜索结果
295 条记录 (耗时 0.025 秒)
